824
FNCA52 TJSJ 301930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU APR 30 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-010800-
SOUTHEAST COASTAL PLAINS-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 10 20
TEMP (24H TREND) 71 (-2) 89 (+3) 71 89
RH % (24H TREND) 91 (+1) 49 (-12) 93 54
WIND 20FT/EARLY(MPH) E 9 E 12 E 11 E 13
WIND 20FT/LATE(MPH) E 8 SE 13 NE 10 E 14
MIXING HGT(FT-AGL/MSL) 4710 4440
TRANSPORT WND (MPH) E 12 E 15
VENT RATE (KT-FT) 47100 57720
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-010800-
SOUTHERN HILLS-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 50 10 20
TEMP (24H TREND) 68 (-3) 85 (+4) 68 86
RH % (24H TREND) 98 (+5) 64 (-10) 98 63
WIND 20FT/EARLY(MPH) E 9 E 9 E 10 E 12
WIND 20FT/LATE(MPH) E 8 SE 11 E 10 E 13
MIXING HGT(FT-AGL/MSL) 4950 4910
TRANSPORT WND (MPH) E 10 E 14
VENT RATE (KT-FT) 44550 58920
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-010800-
NORTH COASTAL PLAINS-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 40 20 20
TEMP (24H TREND) 71 (-2) 89 (+2) 71 89
RH % (24H TREND) 98 (+3) 61 (-8) 99 59
WIND 20FT/EARLY(MPH) E 10 E 10 E 12 E 13
WIND 20FT/LATE(MPH) SE 9 E 13 SE 10 E 16
MIXING HGT(FT-AGL/MSL) 4490 4140
TRANSPORT WND (MPH) E 10 E 14
VENT RATE (KT-FT) 40410 49680
DISPERSION 5 5
DSI 3 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-010800-
NORTHERN HILLS-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 20 60 10 50
TEMP (24H TREND) 69 (-2) 87 (+2) 69 88
RH % (24H TREND) 100 (+3) 65 (-5) 99 62
WIND 20FT/EARLY(MPH) E 8 E 8 E 10 E 12
WIND 20FT/LATE(MPH) SE 6 NE 11 E 8 E 12
MIXING HGT(FT-AGL/MSL) 4800 5070
TRANSPORT WND (MPH) SE 8 E 10
VENT RATE (KT-FT) 33600 45630
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-010800-
WEST COAST-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS NONE TSTMS
CHANCE PRECIP (%) 30 60 0 40
TEMP (24H TREND) 71 (-1) 89 (+1) 71 90
RH % (24H TREND) 99 (+4) 62 (-6) 97 61
WIND 20FT/EARLY(MPH) NE 11 E 11 E 11 E 13
WIND 20FT/LATE(MPH) E 11 E 11 E 10 E 16
MIXING HGT(FT-AGL/MSL) 4730 4670
TRANSPORT WND (MPH) SE 9 E 10
VENT RATE (KT-FT) 37840 42030
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-010800-
EASTERN INTERIOR-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 40 30
TEMP (24H TREND) 69 (-3) 87 (+3) 69 87
RH % (24H TREND) 99 (+3) 63 (-8) 99 60
WIND 20FT/EARLY(MPH) E 9 SE 9 E 11 E 13
WIND 20FT/LATE(MPH) SE 9 SE 11 E 11 E 12
MIXING HGT(FT-AGL/MSL) 5620 4940
TRANSPORT WND (MPH) SE 10 E 14
VENT RATE (KT-FT) 50580 59280
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-010800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 50 40
TEMP (24H TREND) 68 (-3) 83 (+5) 67 83
RH % (24H TREND) 100 (+3) 67 (-11) 100 66
WIND 20FT/EARLY(MPH) E 6 SE 8 E 9 E 11
WIND 20FT/LATE(MPH) SE 6 SE 10 E 8 E 11
MIXING HGT(FT-AGL/MSL) 4560 4320
TRANSPORT WND (MPH) SE 12 E 14
VENT RATE (KT-FT) 45600 51840
DISPERSION 5 5
DSI 4 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-010800-
CENTRAL MOUNTAIN RANGE-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS NONE TSTMS
CHANCE PRECIP (%) 10 70 0 40
TEMP (24H TREND) 66 (-3) 85 (+5) 66 86
RH % (24H TREND) 100 (+4) 68 (-9) 99 65
WIND 20FT/EARLY(MPH) E 6 SE 6 E 9 E 9
WIND 20FT/LATE(MPH) SE 5 E 8 E 6 E 10
MIXING HGT(FT-AGL/MSL) 5120 5720
TRANSPORT WND (MPH) SE 8 E 9
VENT RATE (KT-FT) 35840 45760
DISPERSION 5 5
DSI 1 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-010800-
CAYEY MOUNTAIN RANGE-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 40 30
TEMP (24H TREND) 68 (-2) 82 (+3) 68 82
RH % (24H TREND) 100 (+2) 68 (-9) 100 66
WIND 20FT/EARLY(MPH) E 6 E 8 E 8 E 10
WIND 20FT/LATE(MPH) E 6 SE 10 E 8 E 10
MIXING HGT(FT-AGL/MSL) 4920 4760
TRANSPORT WND (MPH) E 12 E 15
VENT RATE (KT-FT) 49200 61880
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-010800-
VIEQUES-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 50 40
TEMP (24H TREND) 73 (-3) 87 (+2) 74 87
RH % (24H TREND) 92 (+3) 60 (-6) 90 61
WIND 20FT/EARLY(MPH) E 11 E 11 E 13 E 16
WIND 20FT/LATE(MPH) E 11 E 11 E 14 E 13
MIXING HGT(FT-AGL/MSL) 3410 3160
TRANSPORT WND (MPH) E 12 E 18
VENT RATE (KT-FT) 34100 50560
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-010800-
CULEBRA-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 40 30
TEMP (24H TREND) 75 (-2) 88 (+2) 76 88
RH % (24H TREND) 93 (+6) 60 (-7) 91 60
WIND 20FT/EARLY(MPH) E 11 E 10 E 13 E 14
WIND 20FT/LATE(MPH) E 11 E 11 E 13 E 12
MIXING HGT(FT-AGL/MSL) 3410 3130
TRANSPORT WND (MPH) E 13 E 18
VENT RATE (KT-FT) 37510 50080
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-010800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 20 50 0 20
TEMP (24H TREND) 72 (-2) 90 (+3) 72 90
RH % (24H TREND) 96 (+5) 50 (-9) 94 51
WIND 20FT/EARLY(MPH) E 11 E 14 E 13 E 19
WIND 20FT/LATE(MPH) E 14 SE 16 E 14 SE 20
MIXING HGT(FT-AGL/MSL) 4810 4800
TRANSPORT WND (MPH) E 15 E 18
VENT RATE (KT-FT) 62530 76800
DISPERSION 5 5
DSI 3 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-010800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 40 30
TEMP (24H TREND) 74 (-3) 85 (+1) 74 85
RH % (24H TREND) 91 (+4) 63 (-5) 91 64
WIND 20FT/EARLY(MPH) E 10 E 11 E 14 E 14
WIND 20FT/LATE(MPH) E 11 E 11 E 14 E 14
MIXING HGT(FT-AGL/MSL) 3270 3220
TRANSPORT WND (MPH) E 13 E 17
VENT RATE (KT-FT) 35970 48300
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-010800-
ST CROIX-
330 PM AST THU APR 30 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 30 30
TEMP (24H TREND) 74 (-2) 86 (+1) 74 86
RH % (24H TREND) 92 (+2) 62 (-6) 93 63
WIND 20FT/EARLY(MPH) E 11 E 12 E 13 E 14
WIND 20FT/LATE(MPH) E 12 E 12 E 14 E 13
MIXING HGT(FT-AGL/MSL) 4250 4070
TRANSPORT WND (MPH) E 14 E 20
VENT RATE (KT-FT) 51000 69190
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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